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Date: Fri, 14 Sep 2007 08:44:48 +0200
From: Palle Girgensohn <girgen@pingpong.net>
To: Francisco Reyes <lists@stringsutils.com>
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Cc: freebsd-performance@freebsd.org
Subject: Re: AMD or Intel?
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--On torsdag, torsdag 13 sep 2007 19.44.50 -0400 Francisco Reyes 
<lists@stringsutils.com> wrote:

> Palle Girgensohn writes:
>
>> Presently ~pgsql/data has a 16 GB footprint.
>
> If you can put 4GB or better in your machine you should do well.
> Specially since you mentioned you are mostly read with relatively small
> amount of writes.
>
>> The growth is rather slow,  around a percent per week

Sorry, my mistake, more like a percent per day  at the moment...

We are planning about 16 GB RAM, actually. Maybe it is overkill?

> What controller are you getting?
> We have a 3ware SATA controller with RAID6 and it performs pretty well.
> Based on what you wrote SATA RAID should be enough for your load and
> usage pattern.
>
> Obviously if you can afford SCSI/SAS performance will likely be even
> better. However make sure you can get management program for the
> controller. At the very least some type of notification if the raid is
> degraded.

We will probably go for SCSI. HP DL380 with "HP SmartArray", aka ciss.